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Rubidium
Rubidium

Samarium
Samarium



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Rubidium
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Samarium

Atomic Structure of Rubidium and Samarium

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Atomic

Atomic Number

3762
3 117
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Electron Configuration

[Kr] 5s1
[Xe] 4f6 6s2

Crystal Structure

Body Centered Cubic (BCC)
Rhombohedral (RHO)

Crystal Lattice

Atom

Number of Protons

3762
3 117
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Number of Neutrons

4888
4 285
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Number of Electrons

3762
3 117
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Radius of an Atom

Atomic Radius

248.00 pm180.00 pm
0 348
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Covalent Radius

220.00 pm198.00 pm
0 260
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Van der Waals Radius

303.00 pm229.00 pm
0 348
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Atomic Weight

85.47 amu150.36 amu
6.94 294
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Atomic Volume

55.90 cm3/mol19.95 cm3/mol
1.39 71.07
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Adjacent Atomic Numbers

Previous Element

Next Element

Valence Electron Potential

9.47 (-eV)44.80 (-eV)
0 392.42
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Lattice Constant

558.50 pm362.10 pm
0 891.25
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Lattice Angles

π/2, π/2, π/2
π/2, π/2, 2 π/3

Lattice C/A Ratio

1.591.62
0.423 1.9
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